Pipe-machine.



A. A. IVIOSHER.

PIPE MACHINE.

APPLICATION FILED SEPT.24. 1914. 1 151 704. Patented Aug. 31, 1915.

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A. A. MOSHER.

PIPE MACHINE.

APPLICATION FILI-:D SEPT. 24. 1914.

1,1 5 l ,764. Patented Aug. 31, 1915.

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A` A. IVIOSHER.

PIPE MACHINE.

APPLlcAnoN FILED SEPT. 24, 1914.

Patented Aug. 31, 1915.

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NETE@ STATES FATENT @FFllQE ARTHUR A. MOSHER, OF MEDFORD, OREGON.

PIPE-MACHINE.

Application led September 24, 1914.

T0 all whom t may concern Be it known that l, ARTHUR A. Mosman,

a citizen of the United States, residing at` Medford, in the county of Jackson and State ot' Oregon, have invented certain new and useful Improvements in Pipe-Machines; and l do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in plastic working machines and more particularly to those which are designed for the construction of cement tile and pipe.

The primary object of the invention is to provide a device of this character which will be extremely simple and etiicient in operation and with which pipes or tile may be readily constructed.

In carrying out the above end, I provide a circular carriage, a number ot plungers mounted above said carriage, means for raising said plungers through plastic material supported within a number of forms carried by said carriage, means for automatically releasing the raising means for said plungers at a predetermined period and means whereby a brake is applied to retain said plungers in raised position.

A secondary object or' the invention is to construct the means for releasing the operating means of said plungers in an eX- tremely simple .vet highly eiiicient manner.

A further object of the invention is to provide simple and inexpensive means whereby the circular carriage may be rotated when desired.

A still further object is to provide said carriage with a number of form supporting plates and to provide said plates with a number of simply constructed keepers whereby the forms may be retained inl proper position thereon.

Still a further object of the invention is to construct the active portion of the plungers in such a manner as to cause the same to readily form a bore through the article being manufactured and to simultaneously tamp the material surrounding said bore.

Vith these objects in view, the invention resides in certain novel features of construction and combination herein described and claimed and shown in the drawings where- 1n- Figure 1 is a side elevation of a machine Specification of Letters Patent.

Patented Aue. Si, 1915..

Serial No. 863,331.

constructed in accordance with my invention; Fig. 2 is a horizontal section taken along the plane of toe line 2 2 of Fig. l; Fig. 3 is an enlarged vertical section through a portion of the device showing more particularly the releasing means employed in connection with the driving mechanism for the plungers, a clutch, to be described, being shown in inoperative position; Fig. l is a top plan view of a portion of the device; Figs. 5 and 6 are detail vertical sections taken substantially on the line 5-5 of Fig. 2; Fig. 7 is a detail vertical section through one of the tile supporting plates and illustrating the ridge elevation of one of the plunger heads; Fig. 8 is a detail vertical section taken on the lines 8 8 of Figs. 1 and 4c; Fig. 9 is a horizontal section taken on the line 99 of Fig. 3, looking in the direction of the arrows.

ln the accompanying drawings, l have shown my invention as comprising, in general, a suitably constructed base 1, a circular carriage 2 revolubly mounted thereon, a friction drum 3 for driving said carriage, a number of plungers 4f, means for raising and lowering said plungers, means for automatically releasing said raising means at predetermined intervals, means for moving said friction drum 3 into and out of engagement with the carriage 2, and means whereby a braking action is applied to prevent the descent of the plungers, when raised.

Lying in horizontal planes and supported upon suitable brackets 5 which rise from the base l are a number of carriage supporting rollers 6 which are grooved for the reception of inner and outer rings 7 and 8 respectively which are spaced from each other and lie in the same horizontal plane, said rings being connected. at intervals, by mold or form supporting plates 9 which latter are provided with central recesses 10 adapted to receive the lower ends of cylindrical forms 11 (shown in dotted lines in the drawings) and with hook shaped keepers 12 which are adapted to engage shoulders 13 formed on the lower ends of said molds, whereby the latter may be held in proper position upon the supporting plates 9.

Rising from the base l and having their lower ends secured thereto within the innermost ring 7, is a plurality of upright standards 13 which rigidly support a top plate 14C which may be of any suitable construction and configuration. Four of these stand ards are here shown, two of which act to support laterally extending bearings 15 which are disposed above and below sprocket wheels 16 which are slidably keyed upon upright plunger shafts 17, said sprocket wheels being connected by means of chains 18, to upright shafts 19 and 19 which are mounted in suitable bearings which project inwardly from the standards having the bearings 15, the shaft 19 being driven by a suitable motor 20, through the instrumentality of a number of driven gears interposed between the two, while the shaft 19 is driven by a sprocket chain 21 which passes around sprocket wheels 22 and 22 carried by said shafts 19 and 19 a suitable clutch being provided for the purpose of locking the gear 22, mounted on the shaft 19, in such a manner as to cause the same to rotate with said shaft.

he upper ends of the shafts 19 and 19 terminate a suitable distance below the top plate 14 and are provided with beveled gears 24 with which `beveled gears 25, carried rigidly by the ends of horizontal shafts 25, mesh, said shafts 26 having on their opposite ends, slidably keyed clutch members 27, which are adapted to be thrown into and out of engagement with similar members 28 carried by sprocket wheels 29, by means to be described. The sprocket wheels 29 are adapted to drive horizontal shafts 30 which are mounted in bearings 31 upon the cover plate'14, by the provision of sprocket chains 32 which pass over the gears 29 and similar gears 33 which arekeyed to said shafts 30.

The outer ends of the shafts 30 project outwardly from the plate 14 and carry pinicns 34 which mesh with upright rack bars 35, the latter being swiveled at 36 to the upper ends of the plunger shafts 17. 1t will therefore bel seen, that as the shafts 30 are rotated, by the rotation of the upright shaft 19, the spur gears 34 will raise the racks 35' tlnowing the plunger shafts 17 from the position shown in Fig. 1 to that shown in Fig. 3. Upon reaching the upward limit of this movement the racks 35 contact with one arm 37 of bell crank levers 38, saidarms being disposed in a substantially horizontal plane above the plate 14 while the remaining arms 39 of said bell cranks depend through suitable openings in said plate, are pivoted at 40 and have their lower ends forked as indicated at 41 and engaged with `grooves formed in the clutch members 27. 1t will therefore be seen that the arms 37 of the bell crank lever 38 are raised by the ascent of the plungers and racks 35, this movement rocking said levers to slide the clutch member 27 upon the shafts 26 thereby disengaging their teeth from the teeth of the members 28 and allowing rotation on the part of the shafts 30 to be checked.

During this upward movement of the racks 35 and the plunger shafts 17, it will be noted that said shafts 17 are rotated as are likewise cement working heads 42 which are formed on the lower ends of said shafts and which operate in a manner to be set forth. As the weight of the shafts 17, the racks 35 and the heads would tend to rotate the shafts 30 in a direction to allow these members to descend by gravity, it becomes expedient to provide meansr for locking said shafts against rotation when the plungers are raised. For this purpose, 1 have provided levers 43 which are pivoted at 44 to the lower portions of the arms 39, said levers projecting inwardly a suitable distance from their pivots and having weight 45 while their opposite ends project outwardly in position to engage numbers of ratchet teeth 43 which are mounted on one side of the adjacent standards 13; flexible connecting` elements 47 being attached to the arms 37 of the bell crank levers 38 and to the outer ends of said levers 43, said elements passing loosely through openings in the plate 14 and being passed around pulleys 48 which are located beneath the ratchet teeth 46. lt will therefore be seen that upward movement Ybringing flexible brake bands 49 into contact with brake drums 50 which are carried rigidly by the shafts 30, said bands depending through suitable openings in the plate 14 and being connected to the levers 43. By this means, as above suggested, the levers 43 will be engaged with the ratchet teeth 46 when moved downwardly, thereby securely locking the plunger shafts 17 and the plungers 42 carried thereby, in inoperative or raised position.

W hen now it is desired to form a number of tiles or pipes, a pair of the molds 11 are spaced upon certain of the supporting plates 9 by a person standing at a point opposite the clutch mechanisms above described.` A second operator now actuates a foot lever 51 which is pivotally supported as at 52 to cause a segment 53 thereon to eng'age the teeth of a rack bar 54 which extends transversely beneath the carriage 2, in order that the drum 3 revolubly supported upon said bar 54 may Contact with'the inner ring 7, said drum being driven by a sprocket chain 55 from the shaft 19. The frictional contact of the drum 3 with the inner ring 7 will now cause the entire carriage 2 to rotate until the two molds are positioned directly beneath the plungers 42 which are now raised. The levers 43 may now be released from the rack teeth 46 thus allowing said plungers and the parts movable therewith, to descend, the plungers being now positioned in the lower ends of the molds. The molds are now partially filled with plastic material such as cement, and the levers 38A are actuated to engage the clutch members 27 and 28, the result being that, provided the clutch 23 be in operative position, both plunger rods 17 and plungers 42 are raised within the body of cement, during which movement, cone shaped lower ends 56 of said plungers 42 serve to force the material outwardly and upwardly in such a manner as to form the complete tile or pipe by the time the plungers rise above the molds.

It will be noted by reference to the drawings, that outwardly extending wings 57 are provided directly above the conical portions 56 of the plungers 42, said wings acting to loosen the cement at the center of the columns within the molds to allow said cone shaped portions 56 to readily force the same outward, it being understood that the shafts 17, the conical portions 56 and the wings, 57, rotate as a single unit as said shaft 17 is rotated by the means previously described and as the same rises through the gear 16. As the plungers and the racks rise, the upper ends of said racks contact with the arms 37 of the bell crank levers 38, thus throwing the clutch members 27 out of engagement with the members 28 and applying the brake bands 49 to the drums 50 to retain the plungers in raised position until another pair of molds have been placed upon the carriage and moved beneath said plungers in the manner previously described. If, for any reason, it becomes necessary to use but one of the plungers 42, it will be readily understood that the clutch 23 may be thrown out thus leaving the shaft 19 and the parts driven thereby in inoperative position.

From the foregoing description, taken in connection with the accompanying drawings. it will be seen that I have produced an extremely simple machine for carrying out the purpose of the invention yet one which will be highly eiiicient in operation.

I claim as my invention:

1. A machine of the class described comprising a vertically movable tile forming member, a support adjacent the upper end thereof, a horizontal shaft revolubly mounted above said support and carrying means to raise the member when said shaft is rotated, an additional horizontal shaft revolubly mounted beneath the support, driving connections between the two shafts, a clutch on the additional shaft to throw said connections into and out of operation, an inverted L-shaped lever for actuating said clutch, said lever having its horizontal arm disposed above the support and in the upward path of the forming member, a brake drum on the first named shaft, a brake band passing around said drum and having one end depending below the same, a horizontal brake applying member to which said end of the band is secured, a guide beneath the power arm of said brake applying lever, and a flexible connection secured to said power arm at one end and to the horizontal arm of the bell crank lever at its other end, the intermediate portion of said connection being passed around said guide.

2. A machine of the class described comprising a vertically movable tile forming member, means to raise said member and including a brake drum, additional means to release the raising means and including a lever to be actuated by disposition of said member to its uppermost position, a brake member adapted to be forced into contact with said brake drum, a second lever for disposing said brake member to active position, said additional lever being disposed below the first named lever, and the two levers being adapted to be moved in' opposite directions, a guide beneath the additional lever, and a ieXible element secured to the latter at one end and to the other lever at its other end, the intermediate portion of said element being passed around said guide.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ARTHUR A. MOSHER. Witnesses I-I. L. DE ARMoND, L. L. JACOBS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

